212 PROCEEDINGS OF THE ACADEMY OF [JunC, 



to the suture; the first two whorls white. Peristome somewhat 

 thickened within. Columella deeply grooved, bearing a stout tooth. 



Length 1.75, diam. 1.4 mm. 



Waikiki beach, Pilsbry, 191o. Type No. 117049, A. N. S. P. This 

 differs from A. kuhnsi by the distinctly angular shoulder, but as 

 only one example has been examined the constancy of the character 

 is uncertain. 

 Alcyna kapiolaniae n. sp. PI. XV, fig. 3. 



The shell is imperforate, though grooved at and below the umbilical 

 situation, ovate, rather solid, smooth throughout, glossy; flesh-pink, 

 encircled with narrow bands of old rose or jasper red, 7 to 12 on the 

 last whorl, the first two whorls whitish. Lip thickened, bevelled. 

 Columellar area broad, white, with a vertical groove; the tooth stout, 

 directed somewhat downwards. 



Length 2.4, diam. 1.74 mm. 



Waikiki beach, near Honolulu, type No. 117052, A. N. S. P., and 

 Haleiwa, on the west coast of Oahu; Pilsbry, 1913. 



This charming little shell was found in beach debris in both localities. 



It has about the shape of A. rubra, but differs by lacking spiral 



impressed lines, the surface being smooth; also by the color-pattern, 



to which there is no approach whatever in the large series of A . rubra 



examined. It is colored like A. lineata, but that species is spirally 



ridged and somewhat shorter. 



Alcyna lineata Pease. Pi. XV, fig. 4. 



1869. Alcyna lineata Pease, Amer. Jour, of Conch., V, p. 69. 

 1888. Alcyna lineata Pease, Pilsbry, Man. of Conch, p. 182. 



Pease's description was reprinted in Manual of Conchology, but 

 the species has not been figured before. It is openly perforate, 

 about as figured for A . suhangulata, and, as Pease says, transversely 

 ridged, the ridges jasper red, intervals coral pink. There is a distinct 

 though low swelling behind the outer lip. The holotype measures: 



Length 2.15, diam. 1.65 mm.; 4 whorls. 



Type No. 31724, M. C. Z. Puuloa. 



This species differs from A. kapiolajiice, which is similarly colored, 

 by the well-developed spiral ridges, the open perforation and the 

 shorter contour. 



The type is figured. Besides this, I have seen a single specimen, 

 found at Waikiki, which appears referable to this species. It differs 

 by being a little more slender, with the columellar tooth more receding 

 and only part of the spiral ridges are colored, there being five colored 

 lines on the last whorl, instead of ten which the type shows. 



